parkhurst



(No Model.)

A. N. PARKHURST. PUMP.

No. 440,497. Patented Nov. 1'1, 1890.

UNITED STATES ALINUS N. PARKHURST, OF LOGANSPORT, INDIANA.

PATENT OFFICE.

PUMP.

SPEGIFICATION forming part of Letters Patent N o. 440,497', dated November 11, 1890.

Application filed April 25, 1890.

To all whom it may concern:

Be it known that I, ALINUs N. PARKHUEST, a citizen of the United States, residing at Logansport, in the county of Cass and State of Indiana, haveinvented certain new and useful Improvements in Pumps; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to that kind of pumps which are provided with cylinders of stonebaked clay in which the pu mp-plungers operate. Such cylinders as heretofore constructed have been found to be quite liable to be damaged in mounting and placing the pumps; and the object of this invent-ion is to so construct a pump witha cylinder of stone-baked clay that the cylinder shall be well guarded and be the least liable to damage in mounting and placing the pump.

In the accompanying drawings, Figure l represents a side view of a part of a pump with my improvement applied thereto. Fig. 2 is a vertical section of the same. Fig. 3 is a top View of the pum p-cylinder.

A designates the stock of the pump, and B the cylinder, which is constructed of stonebaked clay and made tapering at the top, where it extends a suitable distance into the stock, as shown. The stock A at its lower end is provided with a metal collar a, the lower edge of which is somewhat thicker than the upper edge. The collar ct is provided with perforated lugs c for the purpose hereinafter mentioned.

The cylinder B is provided with several lugs or projections b, which extend laterally therefrom and are made solid therewith.

Serial No. 349,523. (No model.)

The tubingC is secured to the lower end of the cylinder by means of acollar f, which has a flange el, from which extend the perforated lugs c. The iianged collar is also provided with the lips g, which surround the lower end of the cylinder when the collar is applied thereto, as shown. The cylinder and the collar f, with packing i placed between them, are secured by bolts or rods h, which are passed through the perforated lugs c and e to the collar a. As will be seen, the lugsb of the cylinder, when the latteris driven into the pump-stock, are close against the lower end of the stock and also bear against the collar a., so that in case of any shrinkage of the wooden stock before the pump is placed in a well the collar is prevented getting out of place. The cylinder thus constructed and mounted between the collars is well protected from breakage in any of its parts.

I claim- The combination, with a pump-stock provided with a collar a, of the baked-clay cylinder provided with lateral projections b, a anged collar f at the lower end, and securiugrods connected with collars a and f, the said cylinder being tapered at the top and. driven into the pump-stock so that the projections l) are brought against the lower end of the stock and collar a, substantially as herein set forth and described.

In testimonywhereof Ihave affixed my signature in presence of two witnesses.

ALINUS N. PARKI-IURST.

Witnesses:

HENRY PRosCH, JAMES AUsPAUGH. 

